New from Bariatric Advantage – Clearly Protein. As a refreshing, ready-to-drink alternative to traditional protein shakes, Clearly Protein is a great option for bariatric patients. Whey protein naturally provides branched chain amino acids and shows a PDCAAS score of 1.0. Made with 20 g of protein from whey protein isolate in each bottle, Clearly Protein is perfect for any time of day. Additionally, this thirst-quenching drink may be used as part of a clear liquid diet. Delicious Fruit Punch flavor.